Whether to wait or not - I dunno. But outside of the hour just after expiration I've never heard of an OTM option being exercised early. On those 755s if somebody were to exercise right now (shares at $737) you would get to keep all of the premium you originally received PLUS you would sell those covered shares at $755.
On lcc's, you would find that you had just sold 100 shares you don't own (your account would be short 100 shares), and would need to buy to close those shares at $737. So you'd get $18/share over the current share price PLUS the original premium.
I would view early exercise on that position as a gift. Of course you might also have a low cost basis and be presented with a tax bill you hadn't planned on. That's part of the risk with selling covered calls against low cost basis shares (I've done a fair bit of that in the past).