Sure, but as you get close to activation, especially if you are a miner, you would probably want to be sure that you can switch back to whatever you were running before without any hiccups.

once it activates, I think the odds that a block gets mined containing BIP 110 banned txs is very high, as in, probably in the first few blocks post activation. That block will cause all BIP 110 nodes to split off. So, if you are going to just stop, you need to do it before the split.