Well for planking, I'm not 100% sure whether he can deal with it or not. Like practically within the human realm, it's much easier for Lucario to "get in" on the planker compared to the planker playing 100% correct (basically easier for the planker to misspace slightly or misjudge something than it is for Lucario to just keep trying to hit him and succeed.) When done near perfect/absolutely perfect, Lucario cannot answer planking effectively enough to stop the other person, at least IMO (You can ask Lee if you want, I think he might agree that once MK gets planking down to a "t" that the gaps available to punish/stop it become near non existent for Lucario). In the worst case scenario for the planker if he is extremely good is that he will eat an aerial (most likely Dair or Fair from behind him), either SDI out of Dair and punish or eat either aerial, tech the side of the stage, and shuttle loop/punish. From there, he can either attempt to edgeguard Lucario or resume planking depending on where Lucario ends up. Also what can happen is that say Lucario tries to Dair. The MK can SDI out of it and just Uair him every time or do Nair. I think that unless Lucario is SUPER beefed up, that he does more % with Uair than Lucario does with the first part of Dair. Nair certainly does more % than the first hit of Dair.
As for air planking, specifically Wario, it really depends on multiple factors. There are some stages where Lucario can deal with the camping because the layout hinders it enough to where Lucario has reasonable shots to stop it. However, even on a few neutrals airplanking for Wario is powerful enough against Lucario that Wario can dominate him there sadly. For example, Lylat Cruise is one such stage where I don't think realistically Lucario can stop it. The layout favors Wario too much there for air planking. Even Snake who usually can take Wario on neutrals struggles there almost as bad as Brinstar. Smashville is similar, but definitely not as strong. I'd say it's still in Wario's favor, but it's manageable for Lucario. Battlefield I'm not sure, like in theory it should be inbetween Smashville and Lylat for Wario, but I've rarely faced a Lucario on that stage and the few times I have I haven't attempted to camp him probably because they were so long ago before I camped people more mainstream. Lylat though I am positive about. I've played Lee there a few times, one of them in teams where it was me and him at the end, and I would get a fair lead and start running. Even he said afterwards that he doesn't think Lucario can catch up to Wario realistically on stages like that.
For CP's, there are also a few stages where Lucario cannot handle it well. A few that stand out to me are Pictochat and Japes. Pictochat, if it was completely flat the entire time, would be like FD but slightly worse for Lucario. The problem is that literally almost every transformation there favors Wario and either makes running away easier or the transformation gets in Lucario's way enough where under those circumstances Wario can get away while running where normally it would be more difficult. Japes, if it is legal, is just as bad as Lylat is. Wario can not only camp very high in the air, he can also hide under the water and it's very hard for Lucario to deal with. Even if Wario doesn't go high in the air or under water, the layout and length of the stage is favorable to Wario even if he just tries to camp the harder and less effective ways.