Rack::Utils.parse_query(s)
=> {"start"=>"0",
"page_length"=>"50",
"exclude_vehicle_category"=>"[]",
"toll_non_toll"=>"false",
"mode"=>"\"detail_state_mileage_report\"",
"scope_kind"=>"\"enterprise_group\"",
"scope_value"=>"4317",
"scope_values"=>"{\"enterprise_group\": 4317}",
"start_date"=>"{\"snap_unit\": \"day\", \"snap_direction\": \"beginning\"}",
"end_date"=>"{}",
"time_zone"=>"\"EST\"",
"columns"=>"[\"GROUPNAME\", \"VEHICLEID\", \"VEHICLENAME\", \"VEHICLETAG\", \"VEHICLE_VIN\", \"TOTAL_DISTANCE_DRIVEN\", \"TOTAL_DISTANCE_DRIVEN_OH\"]",
"coloring"=>"[]",
"sort"=>"[[\"GROUPNAME\", false],[\"VEHICLEID\", false]]"
}