The problem is we don't get many trout (weakfish) that far up the river... especially in a year like this where we have had lots of rain to lower the salinity of the river. It just isn't a consistent fishery for trout in Cambridge section of the river. The trout prefer deeper and higher salinity waters, like those found in the river's mouth or in the main bay (trout will spawn in shallower waters of the main bay in the spring then are a deeper water fish). You don't see many trout in the rivers except for fall, then they're after spot.
By far, best bait would be fresh crab, then fresh spot. Small squid pennants are productive when trout key into smaller bait fish like glass minnows (silversides). Bloodworms can also be productive. I wouldn't rack your brain out on trying to catch trout from the Choptank pier because it takes some special circumstances from Mother Nature to make it happen on any remotely consistent basis. Just drown some crab, fish at night, and if there happen to be any keeper size trout, hopefully they'll eat it.
It you really would like keeper trout, you'd stand a much better chance fishing RT 50 bridge at night in OC, near east channel draw, the last of the incoming tide to beginning of ebb, from mid-May until mid-July, double 4" Fin-S jigs (or spec jigs), or Gotchas.