Rolling due east on the former SAL wye the 580 will swing back north on the former ACL to Berry Plastics. The giveaway that is is a former FEC motor is the missing upper headlight.
The SGLR route in Sarasota is U shaped. The 580 here is on the curve rolling from the former SAL route southbound to the former ACL north. The destination is Berry Plastics at the end of the line.